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Jonathan Porter

Jonathan Porter metal detecting gold

Jonathan Porter is a well known Australian professional prospector with over twenty three years of gold detecting experience. He first started prospecting as a hobby with a Minelab GT 16000 metal detector back in 1987 on the Palmer River gold field in far North Queensland.

His biggest gold nugget to date weighed in at 83 ounces along with 79 and 54 ounce pieces unearthed the same day using a Minelab GP 3500.

In 1995 Jonathan was asked to assist Minelab with the evaluation and field testing of Minelab’s MPS metal detectors, including some countermine work. He also continues to work in close association with Bruce Candy, Minelab’s Chief Scientist.

In 2004 Jonathan’s business ‘Aurum Australis’ released the first of a now famous series of instructional DVDs. ‘The Outback Prospector – Unleashing the GP Series’ was a hit among Minelab users in Australia and the US and led to a total of four instructional DVDs with the fifth on the GPX 5000 now in production.

The outback prospector - Jonathan Porter

Jonathan has written numerous articles for Australian Gold Gem & Treasure magazine over the years with regular contributions to ICMJ magazine in the US.

Jonathan says “I have an absolute passion for metal detecting and get a huge amount of pleasure in seeing others learning the craft”.

As well as his instructional DVDs Jonathan’s business Aurum Australis carries a range of metal detecting accessories such as Hip Sticks, B&Z booster speaker combos and much more.


Using the GPZ 7000 in High EMI conditions and Audio Smoothing

July 07, 2015 02:08pm

Recently I took a trip up north to spend a few days detecting with a good friend and Minelab dealer Peter Cragg at Gold City Detecting and his detecting mate with the aim to helping them obtain some hands-on field experience and instruction with the amazing new GPZ 7000 with its ZVT technology.

Posted by Jonathan Porter on July 07, 2015 02:08pm | 0 Comments

Using the "Dust Iron" Ferrite GB Aid for the GPZ 7000

June 01, 2015 10:00am

In Summary: If the ground is upsetting your detector due to saturation signals then use the "Dust Iron" Ferrite and the ‘Octopus’ sweep method at start-up and check the GB regularly. If the constant exposure of saturation signals and salt signals are still upsetting the ground balance where you can clearly hear the Ferrite when you are periodically checking, then I highly recommend you select Manual GB mode to prevent the saturation and salt signals adversely affecting the ground balance of your GPZ 7000.

Posted by Jonathan Porter on June 01, 2015 10:00am | 1 Comment

My Method for Ground Balancing the GPZ 7000

April 20, 2015 07:49pm

After having spent quite some time with the testing and development of the GPZ 7000, and coming to grips with the new technology in this detector, I thought it would be great to share with you my ‘best’ method of getting up and running with all of the initial steps you need to carry out when turning on the unit and properly adjusting it to suit the conditions. While these steps are contained within the Field Guide and Instruction Manual, I have added a few practical tips of my own to help you out. So here they are:

Posted by Jonathan Porter on April 20, 2015 07:49pm | 3 Comments

Introducing the GPZ 7000

February 18, 2015 10:37pm

In 1987 I bought my first VLF metal detector, a Minelab GT 16000. In its day it was very innovative thanks to automatic ground balance; because I live in a country where the gold field soils are extremely variable, even in the quieter areas, an auto ground balance feature along with a circuit designed from the ‘ground up’ to work well in mineralised soils was a real boon.  

Posted by Jonathan Porter on February 18, 2015 10:37pm | 7 Comments

Minelab SDC 2300 Metal Detector - Child's Play Part 2

January 21, 2015 12:56am

The SDC 2300 is an amazing little metal detector, I can confidently say this because my son Timothy has achieved amazing results with his SDC in minimal time thanks to the simple switch on and go design. 

Posted by Jonathan Porter on January 21, 2015 12:56am | 0 Comments

The New “Super Detector” from Minelab - the SDC 2300

June 26, 2014 05:05pm

I have always wished for a metal detector that had the sensitivity to find those sub half-gram nuggets but at the same time ignore the mineralisation. Sure the GPX 5000 in Fine Gold with a small Monoloop coil attached does a pretty good job of things, but I always felt I was still a ways off from getting down to the sensitivity required for the tiny nuggets that are still sitting there for the taking, still waiting there patiently after all this time, waiting for something special to come along, something super. Enter the SDC 2300, that’s “Super Detector COMPACT”, and boys does it pack a punch! 

Posted by Jonathan Porter on June 26, 2014 05:05pm | 0 Comments

So you want to find a patch

May 01, 2014 10:00am

This blog is about highlighting some of the decisions I make when out patch hunting and why.

Posted by Jonathan Porter on May 01, 2014 10:00am | 0 Comments

What I listen for when chasing gold at depth

May 30, 2013 11:35am

There are some basic rules that should be at the forefront of your mind when detecting for gold, probably the most important one being to dig everything. No one can accurately determine if a signal is gold just by listening to the signal response, especially if the target is large or close to the surface of the ground. There is another side to gold prospecting with a metal detector that requires a different approach, this is often dictated by expediency due to time restraints and in a lot of cases an attempt to maintain some sanity, these areas are often in and around old diggings where there is a lot of trash from both modern and Old Timers.

Posted by Jonathan Porter on May 30, 2013 11:35am | 6 Comments

Those little ones add up

February 21, 2013 02:39pm

There’s been a real buzz around the world lately with the discovery of a monster gold nugget in Victoria’s Golden Triangle; it never ceases to amaze me the amount of large nugget finds that keep coming out from the richest, but also the most detected dirt on the planet!

Posted by Jonathan Porter on February 21, 2013 02:39pm | 3 Comments

I should have used the PRO-FIND 25

January 02, 2013 11:08am

The day looked like it was going to be hot and the humidity levels even at this time of the morning were already on the rise, I was loading my truck getting ready for an early bird assault on an old surfacing area that has been productive for me over the years and wanted to make sure I hit the ground running with everything ready to go before things got too uncomfortable.

Posted by Jonathan Porter on January 02, 2013 11:08am | 5 Comments
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